公开(公告)号：US20220136421A1

公开(公告)日：2022-05-05

申请号：US17090279

申请日：2020-11-05

Applicant: Cummins Inc.

Inventor： Jinyong Luo ,  Xiaobo Song ,  Colin L. Norris ,  Xin Jin ,  Matthew L. Anderson ,  Ying Yuan

IPC: F01N3/20

Abstract: The enclosed disclosure relates to vehicle systems in which an engine, a particulate filter fluidly coupled with the engine, a selective catalytic reduction (SCR) system fluidly coupled with the engine downstream of the particulate filter, an electrical heating device implemented with the particulate filter, and a controller operatively coupled with the engine and the electrical heating device, are implemented. The controller can detect, when the engine is turned off, a condition for turning on the engine, detect a temperature of the particulate filter of the SCR system, activate the electrical heating device in response to the detected temperature being below a lower temperature threshold, and turn on the engine in response to the detected temperature being at or above the lower temperature threshold.